DE1940021U - SEPARATING DEVICE FOR THIN, LONGITUDINAL STRUCTURES. - Google Patents

Description

A ctiengesellschaft "Gebrüder Loepfe Π A. £ I Jj J. / H * 2fi. H. 00 ,

~ ~ '■ 26. Λρπί 1966 /

Aktiengesellschaft Gebrüder Loepfe,. Zurich

(Switzerland)

Separating device for thin, elongated structures

The innovation concerns ■ a separating device for separating thin, elongated structures with a knife and a counter surface.

Such separating devices are used in particular in textile machines Machines used to cut a moving or stationary thread, for example in a winding machine when it occurs a thread flaw.

For this purpose devices are known in which the movement of the thread with respect to a cutting edge is used for separation

will. ·.

In such a known separating device (see British ' Patent 716'37O) the thread runs on a flat surface perpendicular to the cutting edge of a rotatably mounted cutting edge ;.

To separate ... ♦

With the thread, the cutting edge is swiveled against the pad, stands under a V.'iukel against the thread and touches it. Since the thread is moved far, the cutting edge catches it more and wears the thread as long as "until it .so thin IGT _s that the resistance which the cutting edge opposes the filament has become larger than the Reiosffestigkeit the weakened thread so that it finally abrei.sst. The thread "separates itself" in this device.

It's obvious that such a separator does not short and even approximately smooth cut can result. ' Rather, the separate ends have long, heavily frayed ends Areas on. At the. On winding the thread, the individual fringes of the pad end are clamped in different thread layers in such a way that that the thread end with the automatic., pneumatic thread finder can no longer be detected.

Another major disadvantage is that the known! not suitable for smooth, synthetic thread materials is. The synthetic thread materials have a like this smooth surface j that the cutting edge does not grasp and the Thread can slide undisturbed under this.

Finally, with the severing device described above, a thread cannot be severed at a standstill. ”This requirement ist aber.für thread monitors for textile machines and the like

J'2

vü: i jrunüle & orider £ odcutuss £ · V / oist a? aüen, which 'after aineni Kcriti'ollvor £ u! a £ saüai ^ aeagGlinllpft and reinserted into the control _{device 9} ircier still faults, 2.B · double thread? co aiuas address the ironing device and disconnect the pad cn * before uio Haachine in Gar ^ goaetsi; ■ iat. This porosity cannot be met with the known device.

In another known separating apparatus (see pig -. Zerische- Patent 374'349), "the after Prii'isip. the scissors work » 'viQZ & vn oMge Hachteile partially removed« A device like this shows new slopes! on "Dia'beiden.'Scherlsllitter öüsBen) is manufactured and built in with great precision." The air gap between the blowing mandrels may only be g & az aiüiciai, otherwise oiu oinv? anüfroie.a separation, especially of fine threads, is no longer guaranteed. Closing the shear blades together means increased disrespect ^ ^; A racing device is therefore subject to constant monitoring and has to be changed and overtaken with due regard to a smooth setx-iebasichorhQit

The innovation is the giving up ¹² außrutiöe "obi ^ e ITachteile fix below and create a robust and reliable separation device au _& the dürine länglicho structure? especially fine and coarse 2? adenj yarns etc. made of synthetic or natural

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• Separates materials properly, regardless of whether they are moving become or stand still.

_; ^: -. According to the innovation, this will be the case with. a separating device for separating χ thin, elongated structures, with a knife and a counter

surface achieved in that the knife has a blunt edge and knife and counter surface are made of hard metal.

This cutting device according to the innovation is used in particular for cutting threads in textile machines.

There is a new design of the separating device in accordance with the plan in that the knife and / or the counter surface in a to Opposite surface perpendicular plane are movable relative to each other. This arrangement offers the greatest possible utilization of the energy of the moving part for active cutting.

According to the innovation, the knife and mating surface are made of such a hard material that no permanent plastic deformation occurs when the knife and mating surface collide. This achieves a long service life of the parts ^{1 used} and an always exact separation of the elongated structures to be separated;

The better the separation device is according to an innovation Design designed as a pendulum mounted anvil. It is therefore not necessary to ...

οοΏΟ ^ ΐοη * 2 lines of the prefix ur: ^ -; It very high precision horaustelle *! and to fit, as cl; s I ^ ccscr are of the respective. position adapt to the surface of the surface, can.

A novelty has proven to be particularly advantageous designed separating device

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and is so arranged, üaas the C-e ^ onflait directly rait the elongated anchor doa iiiagnoteii so vercuaäsri ictj that .I'.a ^ nct, anchor and mating surface coaxially 'aligned sir.a. Through this Ausgeatalturig des. ^ ntriebea of the opposite surface becomes a raaxi üalö yvUsrxüt25Utig uaa "üchortraüung the luagnctkraft achieved.

l) io renovation equipment 'X'reniivorrichtuag is suitable for aich suia' Ireniioia of thin. I'dr ^ liclion Cobildcn of the different kindan "v; ie.

i? ädcn _a yarn or i? ilüniG2.ten made of synthetic or natural i'lateria.lioi2 odor twisted coil wires «

The separating device is used in a preferred manner for the Cutting threads in textile machines »

Various, for example, versions of the renewal separating device worciea based on 'the Seichnungou closer · Show Ss :; -

Pig. 1 a 2renavorrichtuiis with coaxial to the magnet coil ■ arranged and from this böwegter Ge

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~ Sig »2 c-inG Trcnnvürrlch'cun ^; udoh. Pi £ »1 in. For looks; Pig “3 cine Trenr-vorrichtui ^ nit drive öcr Gogesiläclie übera

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l ^: i £ _e -r a lässser cutting uater 9 ^ iieschlii'füü :;

5 a knife edge cit Hauptfiice'tte under 90 ° and. Cutting under sincn; '/ in-ieX grSaser ais S0 ° geaclilifr

Pig »δ eifiu üobs-Xtiuigsanorüriung sura. Operation at the Srenia deviceUug

This is a solar device, also a coke oven a 'CosonfläobG 2 divided »The Kocser is swecl ^ äGGi ^ ala Λΐ2ΐ; θ33 auo £ cbilc! ot una dureb a Sapfea 3 swinging in a holder bQ ^ oatict. An .insciilag 5 h & lt from Llosser in eicer sus ·. Gc ^ egg flat a ^ enig it l

The Gesonflache 2 sua. better 1 consists of Gineca platelets, as oiled Srägor 6 from metallic Hundinatcrial solid composite, is «^ iigor δ vdra in a iUlirun ^ soinsata 7 coaxially au. a Masnot spulß 3 ü-shaltea Uud WG.iat at his dsr counterbalance opposite. End an aia Ankor aucsc-bildsten Solbea 9 on «, aar ■ la his ftuhs · 3 division in the wcaeatlloliöa outside the Sp 'oorcichos liogt»

lie- · i'i'ii ^ or 6 una-dor Piihruu ^ seirisats 7 are so ansgeo üuss cino. iizial © "V ^ rachiobuns ciös Kollaons S ^^ öoü was X {regon.-the coil 8 Mn is possible _? soiera the coil 8 through -aie lines 10 of a-current uurcixflounds and aaa.it the

KoVjcri 9 view. By oiiio! 'Or 11?; Ird the Xolben S et al. D ;;: jit ciie Gogenilächc 2 with currentless coil © wiecLer In the

ϊγ ^ οϊ ¹ O ₅ Pith ^ 'ur ^ ei-s ^ t * 7 and coil 8 sinä uircccsefrraeht in a housing which ₉ obGf ^ o ₉ like Cio holder 4 for the i + Goscr 1, aui "attached to a base plate 13 lot «

Ij £ i exe drive great to protect from a 'dustiness su, lot 2v; isehc · ^ PU} i? Uü.2Ceir: sdt2 7 ¹ UuG -rägor 6 a 3!) Iclituag 14 an. £ jo ~ iordnoti dio vorsugavvoiüo from a Gun-nih

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Gs ^: asa Pig "3 k" nn the ^ rägor 6 nit csr counter * lache 2 also from half of the coil S Eugeoin-not ^ ordori "In dieso ^. Pail © is the ^ ä ^ or in Haltorunoön 17 and receives soiiiesa drive via a nit the Bloktronaimsta ^ lo in V / irkli thd

• 20th

Rocker arm 19 · A ? Cdcr 11% dio acts on an anachlas / aos S 6 ', brings the opposite surface 2 supporting carrier 6 ^{ jövveila back' into the Aaisgan ^ satellite ^ »■

fills in cinesi housing 12 ⁸ untor ^ etiracht urziä gcje ^ dusting by ein.0 iibdichtmig 14 ⁸ ^ a beforehand a Guasi'tuiut <2g-

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Scr further structure of the tipping device corresponds

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again *! "crrislerweice ttird a ^ ococr

z j docscn solinoid surfaces 21 and 22 below

Angle of üjWCiclxüissig 90 ° siicinaiidor ^ cischliffen αΐηα «Bio

kesser I ^s eier li'ig "5 soi ^ t" X stand in this paIIe. Only the chief facotters; S3 13. ^ d 24 under oincsi «irikc-l of 90 ° su-eiiaandsr, while

is your XieiOnaation and aas.it your Vorochleiss »·

The £ TG32e advantage of the signed. Srcrjnvorrichtunc is located in

The CJrorinvür ^ n ^ värd auccQlöGt by eirien Stronii; tosa ₈ the boi- · Gpioicweieo voa a KontroileicriclituiijS üOgegobeia can be. Diaaor Stro ^ otoss causes an electrona ^ neticjuhea Paid j, ÜÜ.S ontv / öder den iCo.l "bea 9 odor der. Rocker arm 19 ruckurti ^ ansioht" As a result, the Gogcnflache 2 rushes against the Jieaaor 1 and separates the a ^ iachca b ^ idon. lying structure. The swinging laxreruYi £ of the knife -gev; ährleiat et, daaa in -3 cd ca Pallc ileoser and Oo ^ onflache'2 full on each other troifen "" ixt this- '!' reri direction vjird alao an active ürennen achieved ia G-egensats au'der bekar * aten oingaags beschriobanen device.

u ': i a perfect puncture and a lukewarm' lifespan of the separating device, nuts in the case of the separating device some peculiarities are observed.

First of all, it is important that the skin is better and the surface looks hard; and tough materials exist so that when they collide, the deformations that occur are reversible in the elastic range of the material, that is, they take place in the elastic range of the material to get.

If the separating device is used sum 2renneii by running]? Äden _s yarn, etc., it is "necessary _} that the bowl and the counter surface have a width that is a multiple of the diameter of the? Aden. Bio width of the cutting edge and counter surface must in any case be so groao that Srennvorrichtunj also de ~ a Padoii properly au capture nailed ^, Vieira of default during the passage through the device into transverse vibrations. in Onea practical Palee cutting and counter-Flat 1 were cm wide.

To achieve perfect running of threads, threads, etc. it is also necessary that the .impact of the mating surface on the cutting edge with a correspondingly high kinetic

Energy is used to destroy the fibrils of the thread reach.

However, it has been found that the kinotic energy not only because of the high speed of the moving part may be achieved. If the mass of the opposing surface is small, there is a risk that the rebound will be too great and the knife and the opposing surface start to vibrate, which jeopardizes proper separation. The design of the driving force and the body in motion must be in such a proportion are related to each other so that the impact of the mating surface and the cutting edge occurred approximately aperiodically

To the relatively high energy, which only very briefly is required, a commonly used weak circuit economically, the circuit of Figure 6 has proven to be advantageous. Here is a Transformer 25 stepped down the line voltage and a full wave rectifier 26 is supplied. This rectifier feeds the storage capacitor 28 via a load resistor 27. Parallel to the capacitor 28 is the series connection of the winding 8 of the electromagnet 8, 18 and a normally open contact, that of a relay 29? that in turn via a transistor 3o is controlled, is operated.

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For example obtained from a thread monitor in a textile machine a brief control pulse 31 of 2 volts and 60 milliseconds duration to the control transistor 3o, so this conductive for the corresponding short time, the relay picks up, the circuit is closed for the duration of the control pulse. This causes the storage capacitor 28 to discharge and acts on the electromagnet 8, 18. To the Extinguishing sparks at the contact of the ^ e ^ ais is parallel to this a series circuit of a resistor 32 and a capacitor 33 used.

With this circuit you only need around 1 / 2o of the power of the weak circuit, compared to the direct connection.

A separator according to the present example can be particularly good for separating threads, yarns, etc., regardless of whether they are made of natural or synthetic materials.

Tests have shown that it is possible to use the finest threads from Nm 3oo to coarse ones from Nm 2 without any problems Stand still as if in motion to separate. Long, frayed ends of the threads are reduced due to the extremely short cutting time by an average of 0.1-0.2 milliseconds.

- 11 ft

Although the drive of the 2rön! AvoiTiehUü £ in vorlic & 'oncieri example Kittols of a SlelitromsgnGtea done? so closes -thiea not from j daas der'Anttrieb in voroilhaftor V.'oisa also through oinen jait compressed air "boaufschlagt © n KoXbou b © can be effective

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Claims (12)

Expectations 1) Separating device for separating thin elongated structures, with a knife and a mating surface, characterized in that the knife has a 'blunt edge and knife and The counter surface consist of hard metal. "'■ 2) Separating device according to claim 1, characterized in that the knife and / or the counter surface in a zur'Gegenfläche perpendicular plane are movable relative to each other. 3) separating device according to claim 1 or 2, characterized in that that the material of the knife and the mating surface is so hard that when the knife and the mating surface collide there is no permanent material plastic deformation occurs. 4. Separating device according to one of claims 1 to 3, characterized in that the knife as a pendulum mounted anvil is trained. '5. Separating device according to one or more of claims 1 to 4, characterized in that the flanks of the knife edge are arranged at an angle of 90. 6. Separating device according to claim 5, characterized in that - 13 - the knife has a main facet with an angle of 90 ° and an actual cutting edge with an angle greater than 90 °. 7. Separating device according to one or more of claims 1 ■ to 3, characterized in that the flat counter surface is assigned a magnet with armature as a means of movement. 8. Separating device according to claim 7, characterized in that that the opposite surface is directly connected to an extension of the armature. 9. Separating device according to claim 7 or -8, characterized in that that the magnet, · the magnet armature and the mating surface are arranged coaxially. 10. Separating device according to one of claims 7 to 9, characterized .Identified that there is a seal between the mating surface and the magnet is arranged. 11. Separating device according to one or more of claims 1 to 6, characterized in that the width of the knife cutter Is a multiple of the diameter of the 'structure to be separated. 12. Separating device according to one or more of claims 7 to 10, characterized in that the winding of the magnet for its actuation by a transistor-controlled relay is connected in parallel to a storage capacitor connected to a direct current source via a charging resistor.